Locomotive.



PATENTED JUNE 9, 1903.

B. R. VAN KIRK.

I LOCOMOTIVE. APPLICATION FILED MAR. 21, 1903.

NO MODEL.

4 SHEETS-SHEET 1.

Maw/ Xvi/am No. 730,722. 'PATENTED JUNE 9,-1903.

12:11. VAN KIRK.

LOGOMOTIVE.

APPLICATION FILED MAR. 21, 1903. I no MODEL. 4 sums-sum 2..

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N0 MODEL.

PATENTED JUNE 9. 1903.

B. R. VAN KIRK.

LOOOMOTIVE.

APPLICATION FILED M43. 21, 1903.

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No. 730,722. Y PATENTED JUNE-9, 1903." B. R. VAN" KIRK.

LOOOMOTIVE.

APPLICATION FILED MAR. 21, 1903.

NO MODEL. I 4 SHEETS-SHBETI4.

160.730,?22. Patented June 9,1903.

UNITED STATES PATENT OFFICE.

BENJAMIN RUSSELL VAN KIRK, OF PHILADELPHIA, PENNSYLVANIA, AS- SIGNOR TO BURNHAM, WILLIAMS & COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A FIRM.

LOCOMOTIVE.

SPECIFICATION forming part of Letters Patent No. 730,722, dated June 9, 1903. Application filed March 21,1903. Serial No. 148,906- (No model.)-

To all w/wm it may concern: castings, but also supports the fuel-compart- Be it known thatI BENJAMIN RUSSELLVAN ment, which may be of any capacity desired. KIRK, a citizen of the United States, residing The driving-wheels C are-shown in the presin Philadelphia, Pennsylvania, have inventent instance by dotted lines. There are four ed certain Improvements in Locomotives, of wheels on each side of the locomotive. The 5 5 which the following is a specification. axles of these driving-wheels are mounted in My inventionrelates to certain improve suitable boxes'c, held in place in the frames ments in locomotives having an extended B. F is a forward truck of the two-wheel overhang either at the rear or.in front of type, in the present instance having a single IO the driving-wheels. axle withwheels f. D D are two radial The object of my invention is'to properly swing-trucks, one mounted directly back of support the overhanging portion of the 1000- the other and supporting that part of the motive by trucks which will assume a radial frame of the locomotive on which the fireposition in passing around curves. box and the fuel-compartment are mounted.

r 5 In the accompanying drawings, Figure 1 The equalizing-gear on each side of the locois a side view of a locomotive-engine, illusmotive is divided into two sections. The rear trating myinvention. The unnecessary detail section consists of springs 15 2', mounted above parts of the locomotive have been omitted to each of the boxes 0 c of the two rear drivers avoid confusion. Fig. 2 is a sectional plan 0 G, and links 7; 7?, connecting lever i link i I view of the rear portion of the locomotive, andlever i connecting the equalizing-gear of 70 showing the swing-trucks. Fig. 3 is'a secthe driving-wheels with the equalizing-gear of tion on the line 3 3, Fig. 2. Fig. 4 is a transthe two rear radial swing-trucks. The lever 71 verse section on the line 4 4, Fig. 3. Fig. 5 is connected by a link 6 with a bar e, which is a plan View of a modification of my invenrests under the box at of the axle D and is 25 tion. Fig. 6 is a longitudinal sectional View connected to the bar 6 which rests under the of the modification shown in Fig. 5; and Figs. box d, by means of a spring 6 and a spring 7 and 8 are plan and sectional views, respece is connected to the opposite end of this bar tively, showing two independent two-wheel and to a fixed point on the frame. The front radial trucks at the forward end of the 1000- equalizing-gear is of somewhat the same type 30 motive. as the rear, with the exception that a long The type of locomotive shown is what is equalizing-beam pivoted to the frame of the termed a fourteen-wheel double-end locolocomotive is connected to the single forward motive, in which the fuel-chamber is mounttruck F in the manner shown. ed on the main frame of the locomotive in- The details of the swing-trucks D D are 5 stead of on an independentv tender; but it clearly shown in Figs. 2, 3,and 4. The truck will be understood at the outset that my in- D is connected to across-beam b of the frame vention may be applied to any type of 1000- B by radius-bars'G G in'the present instance. motive. By extending the frame forward The points at which the radius-bars are contwo independent radial swing-trucks may be nected to the truck Dare nearer together 0 mounted forward of the cylinders, if desired. than the points of connection of the radius- 0 This would be necessary if the engine was bars with the main frame, as shown in Fig. provided with an extended boiler. 2. The openings in the frame through which Referring in the first instance to Fig. 1, A the truck Dpasses are of sufficient'widthto is the boiler of thelocomotive. A is the cab. allow the free movement of the saidtruck.

45 A is the fuel-compartment at the rear of the The truck D is connectedto the cross-bar b 5 cab. a is the cylinder-casting. B is the of the main frame by radius-bars G, and in frame, extending from a point forward of the the present instance the points where the smoke-chamber to the rear end of the fuelradius-bars are connected to the truck are compartment. This frame, therefore, not farther apart than the points of connection 50 only supports the boiler, cab, and cylinderwith the cross-beam of the frame. By this arrangement the trucks D D are entirely independent of each other and each assume the proper radial position as it passes around a curve, and the two trucks properly support the rear of the engine-frame. It will be understood, as remarked above, that this same construction may be used forward of the driving-wheels where it is desired to have additional support for the forward end of the engine-frame or when the'locomotive is provided with an extended boiler.

In Figs. 5 and 6 I have shown a different type of radial swing-truck in which the two trucks are independently pivoted to the main frame, one truck D being connected by a V- shaped radius-bar G to a pivot m on the cross-frame B of the main frame of the locomotive and the other having a long V-shaped bar G connected by a pivot-pin m to a crossframe B In this instance the two trucks swing on difierent pivots, and the radiusbars are much longer than those shown in Figs. 2 and 3.

In Figs. 7 and 8 I have shown slightly-different forms of trucks arranged for the forward end of a locomotive. The type of radius-bar is somewhat similar to the radiusbar shown in Figs. 5 and 6. B is the extended frame of the locomotive, and under this frame are the independent radial swingtrucks D and D The truck D is connected to the frame by a V-shaped radius-bar G at m and the truck D is connected to the frame by a V-shaped radius-bar G at m In an application filed April 13, 1903, Serial No. 152,395, I have illustrated and claimed a single two-wheel truck connected to the fixed frame by radius-bars, and in another application,filed March 21, 1903, Serial No. 148,907, I have illustrated and claimed a four-wheel truck made up of two independent two-wheel trucks connected to a main frame by radiusbars.

I claim as my invention- 1. The combination in a locomotive having a main frame, driving-wheels, and two independently-mounted radial swingtrucks at one end of the locomotive, substantially as described.

2. The combination in a locomotive, of the main frame, the driving-wheels, the frame of the locomotive being extended at the rear, and two independently-mounted radial swingtrncks pivoted to the main frame and mounted under the rear of the locomotive back of the driving wheels, substantially as described.

3. The combination in a locomotive, of a mainframe supporting the boiler, fire-box, cab and fuel-chamber and having a series of driving-axles, wheels mounted thereon, with two independentlymounted radial swingtrucks back of the driving-wheels and supporting the rear of the locomotive, substantially as described.

4. The combination in a locomotive, of the main frame, the boiler, fire-chamber, cab and fuel-compartment mounted on said frame, a series of driving-axles, wheels thereon, a single truck mounted under the forward end of the frame, twoindependently-mounted radial swing-trucks at the rear of the driving-wheels and supporting the rear of the truck, and equalizing-gear for the driving-axles and the rear axles,.the equalizing-gear of the rear axles being connected with the equalizinggear of the driving-axles, substantially as described.

5. The combination of the main frame of a locomotive, driving-axles, wheels thereon, two independent trucks at the rear of the driving wheels, one mounted back of the other and supporting the rear portion of the locomotive, an axle mounted in each truck, a pair of radius-bars connecting one truck to the frame of the locomotive, and another pair of radiusbars connecting the other truck to the frame of the locomotive and so arranged that the axle of each truck will assume a radial position in passing around curves, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

BENJAMIN RUSSELL VAN KIRK.

Witnesses:

WILL. A. BARR, J os. H. KLEIN. 

